> I am using VS 2005 to develope a WindowsForms application. In the application
> I have a TextBox control which I am trying to use as data input to an
> incremental search and positioning of the current row in a DataGridView,
> which is sourced through a DataSource to a DataSet containing a DataTable.
> The code I am using is:
>
>         private void BaseLocation_toolStripTextBox_TextChanged(object
> sender, EventArgs e)
>         {
>             if (BaseLocation_toolStripTextBox.Text.Length > 0)
>             {
>                 string searchStr = "PLACENAME like '" +
> BaseLocation_toolStripTextBox.Text + "%'";
>                 DataRow[] selectedRows =
> registrationPlaceListDataSet.RegistrationPlaceList.Select(searchStr);
>                 if (selectedRows.Length > 0)
>                 {
>                     int selectedKey = (int)selectedRows[0]["KeyField"];
>                     int index =
> registrationPlaceListBindingSource.Find("KeyField", selectedKey);
>                     registrationPlaceListBindingSource.Position = index;
>                 }
>             }
>         }
>
> The TextBox looses focus after entry of a character and if I click it to
> reestablish focus it looses focus on each additional character entered.
>
> Any help in understanding what is happening and how I might retain focus in
> the TextBox will be appreciated.
>
> Regards;
> --
> Arlyn_L

"justin creasy" wrote:

> On Mar 9, 3:18 pm, Arlyn_L <Arly...@newsgroup.nospam> wrote:
> > I am using VS 2005 to develope a WindowsForms application. In the application
> > I have a TextBox control which I am trying to use as data input to an
> > incremental search and positioning of the current row in a DataGridView,
> > which is sourced through a DataSource to a DataSet containing a DataTable.
> > The code I am using is:
> >
> >         private void BaseLocation_toolStripTextBox_TextChanged(object
> > sender, EventArgs e)
> >         {
> >             if (BaseLocation_toolStripTextBox.Text.Length > 0)
> >             {
> >                 string searchStr = "PLACENAME like '" +
> > BaseLocation_toolStripTextBox.Text + "%'";
> >                 DataRow[] selectedRows =
> > registrationPlaceListDataSet.RegistrationPlaceList.Select(searchStr);
> >                 if (selectedRows.Length > 0)
> >                 {
> >                     int selectedKey = (int)selectedRows[0]["KeyField"];
> >                     int index =
> > registrationPlaceListBindingSource.Find("KeyField", selectedKey);
> >                     registrationPlaceListBindingSource.Position = index;
> >                 }
> >             }
> >         }
> >
> > The TextBox looses focus after entry of a character and if I click it to
> > reestablish focus it looses focus on each additional character entered.
> >
> > Any help in understanding what is happening and how I might retain focus in
> > the TextBox will be appreciated.
> >
> > Regards;
> > --
> > Arlyn_L
>
> Arlyn_L,
>
> I was able to replicate your problem. I made a project in VS 2005 with
> a TextBox and a DataGridView. Using a TextChanged event of the TextBox
> I call the DataGridView's Select function. This is slightly different
> from your code, but causes the same effect to occur. All I did was add
> a call to the TextBox's Focus() function at the end of my event.
>
> So you would add BaseLocation_toolStripTextBox.Focus(); as the very
> last line in your event. I know this is somewhat of a hack, so if this
> causes problems in other places in your project please post it's
> results. Hope this helps!
>
> ~ Justin Creasy
>    www.immergetech.com
>    www.immergecomm.com
>
>

"Arlyn_L" <Arlyn_L@newsgroup.nospam> wrote in message
news:477F3E01-17D0-4F41-8F54-46544B0322C8@microsoft.com...
>I am using VS 2005 to develope a WindowsForms application. In the
>application
> I have a TextBox control which I am trying to use as data input to an
> incremental search and positioning of the current row in a DataGridView,
> which is sourced through a DataSource to a DataSet containing a DataTable.
> The code I am using is:
>
>        private void BaseLocation_toolStripTextBox_TextChanged(object
> sender, EventArgs e)
>        {
>            if (BaseLocation_toolStripTextBox.Text.Length > 0)
>            {
>                string searchStr = "PLACENAME like '" +
> BaseLocation_toolStripTextBox.Text + "%'";
>                DataRow[] selectedRows =
> registrationPlaceListDataSet.RegistrationPlaceList.Select(searchStr);
>                if (selectedRows.Length > 0)
>                {
>                    int selectedKey = (int)selectedRows[0]["KeyField"];
>                    int index =
> registrationPlaceListBindingSource.Find("KeyField", selectedKey);
>                    registrationPlaceListBindingSource.Position = index;
>                }
>            }
>        }
>
>
> The TextBox looses focus after entry of a character and if I click it to
> reestablish focus it looses focus on each additional character entered.
>
> Any help in understanding what is happening and how I might retain focus
> in
> the TextBox will be appreciated.
>
> Regards;
> --
> Arlyn_L

"Linda Liu [MSFT]" wrote:

> Hi Arlyn,
>
> Based on my understanding, you have a ToolStrip with a ToolStripTextBox and
> a DataGridView on your form. When the user inputs some text in the
> ToolStripTextBox, the DataGridView will set its current row to match the
> text in the ToolStripTextBox. The problem is that the ToolStripTextBox
> looses focus after entry of a character.  If I'm off base, please feel free
> to let me know.
>
> I performed a test on this issue but I couldn't reproduce the problem on my
> side. I also performed a test on TextBox, but I found the problem doesn't
> exist on TextBox, either.
>
> The code of the TextChanged event handler of the ToolStripTextBox in my
> test is the same as yours.
>
> It seems that the focus may be taken from the ToolStripTextBox at somewhere
> else in your actual project.
>
> If possible, could you please send me a sample project that could just
> reproduce the problem? To get my actual email address, remove 'online' from
> my displayed email address.
>
>
> Sincerely,
> Linda Liu
> Microsoft Online Community Support
>
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